Wrench.



No. 659,090. Patented Oct. 2, 1900. 0. H. McMUBRAY.

W R E N C H (Application filed June 1, 1900.)

(No Model.)

i e X q vif nemm PHOTO-LITHO., WASHINGTON, o. a

, expeditiously and conveniently adjusted to- INIT'FED STATES ORVILLE H. MOMURRAY, SPRINGFIELD, MISSOURI.

xWRENCH.

SPECIFICATION forming part of Letters Patent No. 659,090, dated October 2, 1900.

Application filed June 1, 1900. Serial No. 18,740- iNo model.)

To all whom/ it may concern:

Be it known that I,ORVILLE H. MOMURRAY, a citizen of the United States, residing at Springfield, in the county of Greene and State of Missouri, have invented new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to new and useful improvements in wrenches; and its primary object is to provide a wrench which is simple, d urable, and economical and capable of being any size nut and its jaws firmly locked in engagement with said nut when the proper adjustment hasbeen made.

A further object is to provide a locking means which may be readily detached from the jaws.

To these ends the invention consists in the novel construction and combination of parts hereinafter more fully described and claimed and illustrated in the accompanying drawings, showing the preferred form of my invent-ion, and in which Figure l isaperspective view thereof. Fig. 2 is a longitudinal section, and Fig. 3 is a detail view of the locking-lever detached.

Referring to said figures by numerals of reference, l is a shank having a fixed jaw 2 formed therewith and provided with teeth 3 upon one of its surfaces. A handle 4, of suitable form and construction, is secured to the end of this shank in any desired manner.

Slidably' mounted upon the shank 1 is a jaw 5, which is provided with a groove 6' in the rear face thereof adjacent to the teeth3, and the walls of said recess are slotted, as at '7, at an incline, as shown. Fitted within these slots 7 are trunnions 8, extending from opposite sidesof the end of a lever 9, which projects from the groove 6 and is preferably curved, as shown. A spring 10 is secured within the groove 6, and the free end thereof bears upon the outer'surface of the lever '9,

lever 9 and are adapted to engage with the corresponding teeth upon the face of the shank.

It will be seen that when the sliding jaw 5 is moved toward the fixed jaw 2 the lever 9 and its teeth 12 will slip over the teeth of the shank. When the motion of the jaw is reversed, the teeth of said lever will be pressed into engagement with the shank by means of the spring 10. It will be seen that the lever 9 is reduced in thickness at a point near the trunnions 8, as at 13. This reduced portion will register with the slots 7 when the lever is raised out of engagement with the teeth of the shank 1,- and can then be slid laterally from the jaw, as will be obvious.

In the foregoing description I have shown the preferred form of my invention; but I do .not limit myself thereto, as I am aware that inodificationsinay be made therein without departing from the spirit or sacrificing the advantages thereof, and I therefore reserve the right to make such changes and alterations as fairly fall within the scope of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The combination with a shank and fixed jaw, of a sliding jaw upon the shank having a groove in the rear face thereof and slots in the walls of said groove, a lever journaled within the slots and adapted to engagethe shank, said lever adapted to register with, and slide within the slots when disengaged from the shank.

2. The combination with a shank and a fixed jaw, of a sliding jaw upon the shank having lever within the groove, trunnions thereto In testimony whereof I aflix my signature bearing within the slots, teeth upon the lever in presence of two witnesses.

normally en agin the teeth of the shank, and a spring within tlTe groove and bearing upon I ORVILLE MOMURRAY' the lever, said lever adapted to register with, Witnesses: and be moved laterally Within, the slots of BEN WILSON, the jaw when disengaged from the shank. J. MOORE. 

